James m



(No Model.) 1

J. M. MERRITT. OIL BURNER.

Patented June 5, I894.

- m: NAYION LLLLL nos uuuuuuuuuuuu Y.

NITED" STATES PATENT union.

JAMES M. MERRITT, on HOMER, MICHIAN, ASSIGNOROF ONE-HALF TO DWIGHT w. KNIOKERBOGKER, or SAME PLACE.

OIL-BURNER.

SPECIFICATION forming part of Letters Patent No. 520,997, dated June 5, 1894.

Application filed March 27, 1893. Serial No. 467,690. (No model.) 7

To all whom it may concern:

Be it known that 1, JAMES M. MERRITT, a citizen of the United States, residing at 1-10- mer, in the county of Calhoun, State of Michigan, have invented certain new and useful Improvements in Oil-Burners; and I do declare the following to bea full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to new and useful improvements in central draft oil burners, and consistsin a certain construction and arrangement of parts as hereinafter fully set forth, the essential features of which being pointed out particularly in the claims.

The objects of the invention are to construct a burner of this class, in which the circular contour of the upper end of the burner shell is preserved, and a uniform wickspace between the outer and inner walls of the shell maintained, and to provide simple and effectual wick actuating mechanism. These objects are attained in my improved burner, as

illustrated in the accompanying drawings, in which- Figure 1 is a perspective view of a burner embodying my improved features. Fig. 2 is a vertical section through the burner shell and housing for the wick-raising mechanism, showing a portion of said mechanism in 'elee vation. Fig. 3 is a perspective view of the wick tube and clamping band, and a portion of the wick-raising mechanism.

Referring to the letters of reference, A designates the shell of the burner which is cylindrical and open through the center. Said shell is composed of an inner and an outer wall arranged concentric and approximately parallel so as to form an annular wick-space or chamber between their adjacent faces, that is adapted to receive the tubular wick B. Said chamber being closed at its lower end, and having communication with the oil reservoir (not shown), through the aperture a in the outer wall of said shell.

Formed integral with the outer wall of the shell and projecting laterally therefrom, is a closed housing 0 which communicates with the wick-space in said shell. Said housing extends from the base of the shell to a point some distance below the upper end thereof, and is adapted to contain the wick-actuating mechanism. Extending from the upper end of said housing is a vertical cylindrical tube 1), that communicates with the interior thereof. Journaled in a hood dof said housing is a gear-wheel 6 located in line with the aperture through the tube 1), the outer end of the shaft of said wheel carrying a disk f by means of which it may be rotated.

D designates an L -shaped bar located within said housing, and having a rack a formed in the round vertical portion thereof, which is engaged by the gear-wheel e, and the upper end of which extends. into and fits so closely within the tube b as to prevent the escape of gas from the upper end of said tube. The lower right angle portion of said rackbar passes through the lower end of the spring-arm E, and is rigidly secured therein,

the end 1' of said bar extending some distance through said arm, which stands vertically parallel with the rack-bar and is provided at its upper end with a hook 0 turned toward and adapted to indent the wick.

F designates the wick-tube which is in serted within the wick and to which the wick is secured by means of the clamping band G,

which encircles the lower end of said wick and binds it against said tube. Secured to said band is a vertical post H, formed of thin metal and concavo-convex in cross section to coincide with the circular form of said band and tube, as is also the vertical arm E. The upper end of the post H is provided with an aperture n that is adapted to receive the hook 0 on said arm.

As shown in Fig. 2, the wick, with the tube F placed therein and the band G clamped around the lower end thereof, is inserted in the annular wick-space Within the shell, with said wick tube and band resting upon the projecting end 1 of the rack-bar D, at which time the spring hook o of the vertical arm E, engages the aperture in the upper end of the post H and passes through into the wick to prevent the latter from slipping in the tube F. The rack bar being run up by means of the gear e, so as to extend the hook of said arm above thetop of the shell for thispurpose. By this construction it will be seen that the vertical motion of the rack bar is directly imparted to the wick to raise and lower the same, and that the wick-tube is firmly held from binding in itsvertical movement allowing all parts to work freely. It will also be seen, that, by reason of the upper end of the housing terminating below the top of the shell, any escape of accumulated gas must occur through the wick, whereby it will be so retarded and dissipated, as to besreadily consumed when reaching the flame.

Having thus fully set forth my invention, what Iclaim as new, and desire to secure by Letters Patent, is-' 1. In aburner, the combination with the shellhaving an annular wick space, and a housingatone side thereof; of the Wick tube within the wick, the clamping band embracing the wick opposite said wick tube and carryinga rigid vertical arm standing outside the wick and having a hole near its upper end, a gear within said housing, a rack bar meshing therewith and having itslower end turned and passing removably under the lower end of said vertical arm, and an upright spring arm carried by the inturned end of the rack bar, standing over said vertical arm, and having a hook at its upper end passing at this time through the hole in the vertical arm and into the wick, as and for the purpose setxforth.

2. In a burner, the combination with the shell having an annular wick space, a housing at one side thereof and a cylindrical tube risingfrom the top of the housing; of the wick tube within the wick, the clamping band embracing the wick and carrying a vertical arm,

end turned and passing under said vertical arm, an arm carried by saidlower end, and a JAMES M. MERRITT.

\Vitnesses:

D. W. KNICKERBOCKER, P. H. HEATH.

a gearwithinsaid housing, a round rack bar meshing therewith and having its upper end sliding in said cylindrical tube and its lower 

